تعریف تنوع در نمودارهای فعالیت و شبکه های پتری ☆

In this paper, we propose a formal syntax and semantics for defining variability in Petri nets. We use these extended Petri nets as a foundation to formally define variability in UML activity diagrams; UML activity diagrams serve as a basis for several testing techniques in product line engineering. We illustrate the contribution of such a formalization to assurance activities in product line engineering by describing its usage in three application examples.